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I wanted to invoke testng programmatically. Not eclipse plug-in.

I have associated "testng-6.8.21.jar" and running through eclipse and i ran below code:

import org.testng.TestNG; public class SampCls { public static void main(String[] args) { TestNG test=new TestNG(); } }

Getting below exception. How can i overcome this exception.

Exception in thread "main" java.lang.NoClassDefFoundError: com/beust/jcommander/ParameterException at SampCls.main(SampCls.java:12) Caused by: java.lang.ClassNotFoundException: com.beust.jcommander.ParameterException at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 1 more
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4 Answers 4

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18

If you use a Maven project, you need add this dependancy:

<dependency> <groupId>com.beust</groupId> <artifactId>jcommander</artifactId> <version>1.48</version> </dependency>

the class com/beust/jcommander/ParameterException is inside

If you use a project without Maven you need add this jar file at your classpath:

jcommander-1.48.jar

You can download this jar file on central.maven.org -> jcommander-1.48.jar

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6 Comments

As i mentioned, i am not using any maven anything. I just downloaded this jar, launched eclipse, referenced this jar in build path, and wrote the above 3 lines of code. When i run @Test public void hello(){Syso("hello")} it is working fine. But when i invoke testng programatically, it is throwing that exception.
import org.testng.TestNG; public class SampCls { public static void main(String[] args) { TestNG test = new TestNG(); } } is OK, can you give all code please?
Some how now my test is not invoked, Can you help me? import org.testng.TestNG; public class SampCls { public static void main(String[] args) throws ClassNotFoundException { TestNG test=new TestNG(); Class cls=Class.forName("TestSuite.TestCases.AddContactHappyPath").getClass(); test.setTestClasses(new Class[] {cls}); test.run(); } } Following is my test. what i am missing: package TestSuite.TestCases; import org.testng.annotations.*; public class AddContactHappyPath { @Test() public void AddContactHappyPathTest() { System.out.println("hello world"); } }
Output in console is: [TestNG] Running: Command line suite =============================================== Command line suite Total tests run: 0, Failures: 0, Skips: 0 ===============================================
@sgrillon- thanks, adding jcommander-1.48.jar worked for me :)
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3

Change:

Class cls = Class.forName("TestSuite.TestCases.AddContactHappyPath").getClass(); test.setTestClasses(new Class[] { cls });

By:

 test.setTestClasses(new Class[] { AddContactHappyPath.class });

All code is

import org.testng.TestNG; import com.xxx.test.others.AddContactHappyPath; public class SampCls { public static void main(String[] args) throws ClassNotFoundException { TestNG test = new TestNG(); test.setTestClasses(new Class[] { AddContactHappyPath.class }); test.run(); } }

TestNG code is:

import org.testng.annotations.*; public class AddContactHappyPath { @Test() public void AddContactHappyPathTest() { System.out.println("hello world"); } }

Console result:

[TestNG] Running: Command line suite hello world =============================================== Command line suite Total tests run: 1, Failures: 0, Skips: 0 ===============================================
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2 Comments

As the class exists in a package, i suppose we need to provide the complete path like Class.forName("TestSuite.TestCases.AddContactHappyPath") and the below worked for me: test.setTestClasses(new Class[] { Class.forName("TestSuite.TestCases.AddContactHappyPath") });
I update the code with the testNG in a other package. I add import com.xxx.test.others.AddContactHappyPath;
0

As @sgrillon correctly pointed out, you need the correct Maven dependency, but also the shade plugin (https://maven.apache.org/plugins/maven-shade-plugin) to package a Uber-jar including all Maven dependencies for easy execution. This is what should be included in your pom.xml:

... <dependencies> <dependency> <groupId>com.beust</groupId> <artifactId>jcommander</artifactId> <version>1.48</version> </dependency> </dependencies> ... <plugins> ... <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>2.3</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <shadedArtifactAttached>true</shadedArtifactAttached> <shadedClassifierName>runnable</shadedClassifierName> </configuration> </execution> </executions> </plugin> </plugins>

After you build the Maven package, you'll get your regular my-app-1.0-SNAPSHOT.jar file and also a my-app-1.0-SNAPSHOT-runnable.jar. This is what you should run, with the command:

$ java -jar my-app-1.0-SNAPSHOT-runnable.jar

You can verify with this command:

$ jar tvf my-app-1.0-SNAPSHOT-runnable.jar

that the shaded jar contains the JCommander classes (and those of all the other Maven dependencies), while the regular one doesn't.

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0

Solution for me was to install TestNg. I referred this link here. As I was using latest version of eclipse, Eclipse MarketPlace option didn't work for me, if it works for you then great. Else goto Help -> Install new software and work with http://dl.bintray.com/testng-team/testng-eclipse-release/ After installation refer 1st link I mentioned to continue. All the best !!

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